Circuit Breakers

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector

 

Style:
Product Price Rating Action
  • lsis-bk63h-1p_3__28000.jpg

    LS Electric

    0626031763

    626031763, BK63H 1P C1A 10kA 120/240VAC UL1077

    MCB, UL1077, 1-Pole, C-Curve, 1 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker

  • lsis-bk63h-2p-489__38460.jpg

    LS Electric

    0627049763

    627049763, BK63HU 2P C10A 10kA 480Y/277VAC UL489

    MCB, UL489, 2-Pole, C-Curve, 10 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker

  • lsis-bk63h-2p-489__38420.jpg

    LS Electric

    0627049663

    627049663, BK63HU 2P C6A 10kA 480Y/277VAC UL489

    MCB, UL489, 2-Pole, C-Curve, 6 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker

  • lsis-bk63h-3p_4__79813.jpg

    LS Electric

    0628032463

    628032463, BK63H 3P C10A 6kA 480Y/277VAC UL1077

    MCB, UL1077, 3-Pole, C-Curve, 10 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker

  • lsis-bk63h-3p_4__93546.jpg

    LS Electric

    0628032363

    628032363, BK63H 3P C6A 6kA 480Y/277VAC UL1077

    MCB, UL1077, 3-Pole, C-Curve, 6 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker

  • lsis-bk63h-2p-489__44710.jpg

    LS Electric

    0627046763

    627046763, BK63HU 2P C40A 10kA 240VAC UL489

    MCB, UL489, 2-Pole, C-Curve, 40 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker

  • lsis-bk63h-2p-489__33774.jpg

    LS Electric

    0627046663

    627046663, BK63HU 2P C32A 10kA 240VAC UL489

    MCB, UL489, 2-Pole, C-Curve, 32 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker

  • lsis-bk63h-2p_5__51119.jpg

    LS Electric

    0627042063

    627042063, BK63H 2P C3A 6kA 480Y/277VAC UL1077

    MCB, UL1077, 2-Pole, C-Curve, 3 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker

  • weg_umbw_489_3pole_7__82390.jpg

    Weg

    UMBW-4C3-6

    13338881, Replacement for UMBW-4B3-6 (14361491)

    MCB, UL489, 3-Pole, C-Curve, 6 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg_umbw_489_3pole_6__72819.jpg

    Weg

    UMBW-4C3-8

    14362807, Replacement for UMBW-4B3-7 (14361494), UMBW-4B3-8 (14361495) and UMBW-4C3-7 (14362806)

    MCB, UL489, 3-Pole, C-Curve, 8 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg_umbw_1077_3pole_20__91340.jpg

    Weg

    UMBW-1C3-1

    14360153, Replacement for UMBW-1B3-1 (14353156)

    MCB, UL1077, 3-Pole, C-Curve, 1 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector